JSI MODELS UH-1 Huey - 1/18 Scale! U.S. Army 174th Assault Helicopter Company Shark UH-1 Gun Ship 1/18 Display Model in amazing 1/18 scale! Measures approximately 31" long with a 26.5" rotor-span Deployed to Vietnam by U.S. Navy ships in 1966, remained until 1971 174th AHC, formed in 1965, 174th Assault Helicopter Co "Sharks" These popular huge Vietnam War model helicopters will not last!